Hide-working machine



(NO' Model.)

B- WHITNEY.

V HIDE WORKING MACHINE. Iva-367,257. Y Patented July 26, 1887.

UNITED STATES PATENT OF ICE.

ARTHUR E. WHITNEY, OF WINOHESTER, MASSACHUSETTS.

HIDE-WORKING MACHINE.

SPECIFICATION forming part of Letters Patent No, 367,257, dated July-26, 1887.

Application filed May 19, 1837. Serial No. 238,746. (No model.) i

.To all whom it may concern.- Be it known that I," ARTHUR E. WHITNEY, ofWinchester, in the county of Middlesex and State of Massachusetts,haveinvented a new and useful Improvement in Hide-VVorking Machines, ofwhich the following, taken in connection with the accompanying drawings,is a specification.

My invention relates to machines for unhairing, working out, andsecuring hides; and it consists in a novel construction of the feedrolland a novel arrangement of the bed and feed rolls relative to theworking-cylinder, which will be readily understood by reference to thedescription of the drawings and to the claims to be hereinafter given.

Figure 1 of the drawings is a transverse secfional elevation of amachine embodying my invention. Fig. 2 is a partial elevation of one ofthe end frames and the boxes for carrying the bed and feed rolls, withthe shafts of the rolls and working-cylinder and the spring-casings cutin section. Fig. 3 is a vertical section through the upper portion ofone of the end frames and the roll-carrying boxes, and showing thelevers and screws for adjusting said rolls in elevation; and Fig. 4 is atransverse'section of the feed-roll drawn to an enlarged scale. g

This invention is an improvement upon the invention described in LettersPatent No. 330,655, granted to me November 17, 1885, to which referencemay be had for a plan of the machine, no more drawings being made inthis case than is necessary to illustrate the improvements.

In the drawings, A is one of the end frames of the machine, which isconnected with a similar frame at the other end of the machine by thetie-g'irts B and B and the feed-table O.

D is the bed-roll mounted in hearings in the horizontally-movable box a,fitted to suitable housings in the frame A and pressed toward theworking or knife cylinder by the springs b, substantially. as in saidprior patent.

E is thepressure feed-roll mounted in hearings in the vertically-movableboxes (1, only one of which is show'n,which boxes are pressed downwardby the springs 6, (only one shown,) the regulation and operation ofwhich are the same as described in said prior patent. The core of thefeed-roll E is made of metal,and has formed in its periphery ascries oflongitudinal grooves,

- in which are fitted strips of wood 0 0, the outer surfaces of whichare turned or otherwise worked to the circle of the cor-e, and thenthewhole is covered with an. envelope, 0, of felt or other suitableflexible and elastic material, which may be done by wrapping a ribbon orband of said flexible and elastic material spirally around the cylinder,orwrappinga sheet of said material around the same, butting its edgesand securing it by nailing it to the strips 0 c, as shown in Fig. 4.

F is the working eylinder, constructed, arranged, and operatingsubstantially as described in said prior patent.

In my prior patent above cited the pressure feed-roll E was placeddirectly above the bedroll, or with its axis in the same verticallongitudinal plane as the axis of the bed-roll, and mechanismwasprovided for raising the press ure feed-roll at the same time thatthe bed-roll was moved horizontally away from the working-cylinderwhenever, for any reason, it was desirable to change the position of thehide. This was found to be objectionable on account of the extra laborrequired of the operator in moving both rolls at the same time, andalsofor the reason that the feed-roll was moved away from the bed-roll asfast as the bed-roll was moved away from the working or knife cylinder,while there are times when it is very desirable to be able to move thebed-roll away from the working or knife cylinder to a. limited extent bya slight movement of the treadle without materially affectingthe'pressure between the feed and bed rolls, or by depressing thetreadle to a greater distance to relieve thepressure between thebed-roll and the feed'roll, as well as between the bed-roll and theworking or knife cylinder. To obviate these objections and producethe'results above named", I mount the pressure feed-roll' in a positionwith its axis in a longitudinal vertical plane about one inch nearer tothe working-cylinder than the axis of the bedroll, and rest its boxesupon the inner ends of the levers g, pivoted to the end frames, A, at h,

ICO

with the free end of one arm in contact with the side of the box aopposite to the spring I) and the free end of the other arm pivoted tothe upper end of the link H, the lower end of which is stepped on therear end of the treadle-lever I, as shown. By this construction I amenabled to sulficiently separate the bed-roll from the working-cylinderand from the pressure-roll by simply moving the bedrollhorizonta1l-y,without raising the pressureroll, whenever it is necessaryto change the position of the hide during its passage through themachine, the pressureroll being pre vented from falling below a givenlevel,as the roll D is moved toward the front, by the lever g,- or, bymoving the treadle-lever downward from its normal position a limiteddistance, the bed-roll may be moved away from the working or knifecylinder a sufficient distance to relieve the pressure between thebed-roll.

and the working or knife cylinder or permit the passage of a thickerpart of the hide, as the head or neck, without iclievi ng the pressurebetween the bed and feed rolls, so as to stop the feeding of the hide.

I am aware that wooden feed rolls have been covered with felt or similarmaterial; but the wooden roll is liable to spring while in operation andsometimes to become permanently bent, a smooth metal roll is liable toslip upon the hide and not feed the same, and a rough ened feed-roll,like that described in my prior patent before cited, is liable at timesto injure the hide.

The object of constructing the feed-roll as herein described is toobviate the objections above referred to.

\V hat I claim as new, and desire to secure by Letters Patent of theUnited States, is-

1. In combination with the bed and work rolls of a hide-working machine,a feed-roll composed of a metal body provided with a series oflongitudinal grooves filled with strips of wood, and a flexiblecovering, substantially as described, wrapped around said core andstrips and secured thereto by nailing into said wooden strips.

2. The combination of the laterally-movable bed-roll D, thevertically-adjustable feed-roll E, the pivoted stop-levers g g, andadjustingscrews 1', all constructed and adapted to oper atesubstantially as and for the purposes described.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, on this 16th day of May, A. D.1887.

ARTHUR E. HI I TNEY.

Witnesses:

JAMES '1. MURRAY, N. O. LOMBARD.

